Although the T&C’s say that this offer is only available to those that receive the email:

The online system allowed me to register.

And the registration email followed soon.

Conclusion

This is the second 1st anniversary offer. The first one was for 750 bonus points for a stay. Let’s hope that these both work.

Here are the terms and conditions of this offer:

1. The general terms and conditions of the Le Club Accorhotels program apply to the “1st anniversary” offer.
2. This offer entitles members of the Le Club Accorhotels Loyalty program, regardless of their status, to benefit from bonus Le Club Accorhotels points, the number of which is mentioned in the personalized communication presenting the offer, on the condition that the members received personalized communication regarding the offer via e-mail, signed up for the offer by clicking on the “Sign me up for the offer” button, and filled in and confirmed the requested information.
3. The offer is only valid if the member makes a reservation and stays at one of the hotels participating in the Le Club Accorhotels program within the 3 months following the date on which the personalized communication regarding the offer was sent to the member.
4. The offer is valid only one time per member.
5. To benefit from this offer, the member must book on-line ahead of time (via accorhotels.com or one of our hotel brand web sites) or via our Accor reservation center.
6. The member must present his/her loyalty card number at the hotel reception desk upon check-in for the stay in question.
7. A stay is considered to be any reservation by the member, regardless of the number of rooms included in the reservation. An individual member’s reservation that includes several rooms during the stay is only counted as one stay.
8. This offer may not be combined with any other promotional offers or advantages (including special promotions such as Super Sales rates), and does not apply to groups.
9. Points will be credited within ten (10) days following the end of the member’s stay at the hotel.
10. This offer is subject to conditions and availability. Terms of sale apply for specific reserved public rates at each hotel.

OK. They have some system then in place for not letting non-targeted accounts to register for this.

McCaron

because of Loyaltylobby and Flyertalk, Accor has been much more careful now, there will be less and less cheaters
not only some offers are targeted but they also double cross databases between those who receive targeted communication and who register to offers

250 and 750 point promos can be combined, even if you haven’t recieved e-mail. I just had the posted. Also there is now a promo with 1000 miles for a 1 night stay at high end 2 night medium stay. It also worked. So my stay for 2 nights in Mercure costing 120 eur earned me around 3500 points which is 70 eur worth. Not bad 😉